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Details of Grant 

EPSRC Reference: GR/S27436/01
Title: DARP: Highly swept leading edge separations - Computational investigation
Principal Investigator: Leschziner, Professor M
Other Investigators:
Peiro, Professor J Drikakis, Professor D Sherwin, Professor S
Researcher Co-Investigators:
Project Partners:
BAE Systems QinetiQ Rolls-Royce Plc (UK)
Department: Aeronautics
Organisation: Imperial College London
Scheme: Standard Research (Pre-FEC)
Starts: 01 September 2003 Ends: 31 August 2007 Value (£): 228,850
EPSRC Research Topic Classifications:
Aerodynamics
EPSRC Industrial Sector Classifications:
Aerospace, Defence and Marine
Related Grants:
GR/S27474/01 GR/S27467/01 GR/S27443/01 GR/S27450/01
Panel History:  
Summary on Grant Application Form
A 4-year computational programme is proposed, combining simulation and modelling elements, which intends to illuminate the key physical and dynamic mechanisms contributing to vortical separation from highly swept wings and identify the predictive capabilities of LES vis a vis RANS modelling for such wings. One major challenge for LES is the need for high accuracy in the presence of high Reynolds numbers and complex geometry. The uncertainty on the most appropriate choice of numerical framework leads the proposal to devote an initial period of 1 year to an examination of three different numerical schemes; cell centred finite volume, hp spectral element and Godunov schemes. The most appropriuate scheme would then be used, within a version of a variant of the Detached Eddy Simulation methodology, to examine physical issues. RANS/URANS studies will also be undertaken, exploiting LES and experimental data. It is expected that the second-order cell-centred FV formulation would be used for this study. In terms of turbulence modelling, it is likely that eddy-viscosity models (linear/non-linear) will be employed. It is also likely that additional model elements (or corrections) will be adopted to accommodate the highly-swirling portion of the flow and flow unsteadiness, for which normally second-moment closure would normally be expected to give superior performance.
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Organisation Website: http://www.imperial.ac.uk